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num parameter manual - Documentation CN

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7.2 Reminders<br />

The measurement origin «OM » and machine zero point «Om » coincide.<br />

7 - 4 en-938818/4<br />

Homing direction<br />

P15<br />

OM/Om<br />

Datum switch<br />

Min. limit switch Max. limit switch<br />

Contact closed Contact open<br />

One encoder revolution<br />

ORPOM = 0<br />

Axis encoder card reset<br />

Datum switch bit = 1<br />

P17<br />

Encoder marker pulse<br />

Current position reset before the encoder pulse<br />

Read of the axis card counter and conversion to internal units<br />

+ ORPOM<br />

= New absolute value of the current position of the axis<br />

Figure 7.1 - Detail of homing

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